linux/include/trace/events/sock.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#undef TRACE_SYSTEM
   3#define TRACE_SYSTEM sock
   4
   5#if !defined(_TRACE_SOCK_H) || defined(TRACE_HEADER_MULTI_READ)
   6#define _TRACE_SOCK_H
   7
   8#include <net/sock.h>
   9#include <net/ipv6.h>
  10#include <linux/tracepoint.h>
  11#include <linux/ipv6.h>
  12#include <linux/tcp.h>
  13
  14#define family_names                    \
  15                EM(AF_INET)                             \
  16                EMe(AF_INET6)
  17
  18/* The protocol traced by inet_sock_set_state */
  19#define inet_protocol_names             \
  20                EM(IPPROTO_TCP)                 \
  21                EM(IPPROTO_DCCP)                \
  22                EMe(IPPROTO_SCTP)
  23
  24#define tcp_state_names                 \
  25                EM(TCP_ESTABLISHED)             \
  26                EM(TCP_SYN_SENT)                \
  27                EM(TCP_SYN_RECV)                \
  28                EM(TCP_FIN_WAIT1)               \
  29                EM(TCP_FIN_WAIT2)               \
  30                EM(TCP_TIME_WAIT)               \
  31                EM(TCP_CLOSE)                   \
  32                EM(TCP_CLOSE_WAIT)              \
  33                EM(TCP_LAST_ACK)                \
  34                EM(TCP_LISTEN)                  \
  35                EM(TCP_CLOSING)                 \
  36                EMe(TCP_NEW_SYN_RECV)
  37
  38#define skmem_kind_names                        \
  39                EM(SK_MEM_SEND)                 \
  40                EMe(SK_MEM_RECV)
  41
  42/* enums need to be exported to user space */
  43#undef EM
  44#undef EMe
  45#define EM(a)       TRACE_DEFINE_ENUM(a);
  46#define EMe(a)      TRACE_DEFINE_ENUM(a);
  47
  48family_names
  49inet_protocol_names
  50tcp_state_names
  51skmem_kind_names
  52
  53#undef EM
  54#undef EMe
  55#define EM(a)       { a, #a },
  56#define EMe(a)      { a, #a }
  57
  58#define show_family_name(val)                   \
  59        __print_symbolic(val, family_names)
  60
  61#define show_inet_protocol_name(val)    \
  62        __print_symbolic(val, inet_protocol_names)
  63
  64#define show_tcp_state_name(val)        \
  65        __print_symbolic(val, tcp_state_names)
  66
  67#define show_skmem_kind_names(val)      \
  68        __print_symbolic(val, skmem_kind_names)
  69
  70TRACE_EVENT(sock_rcvqueue_full,
  71
  72        TP_PROTO(struct sock *sk, struct sk_buff *skb),
  73
  74        TP_ARGS(sk, skb),
  75
  76        TP_STRUCT__entry(
  77                __field(int, rmem_alloc)
  78                __field(unsigned int, truesize)
  79                __field(int, sk_rcvbuf)
  80        ),
  81
  82        TP_fast_assign(
  83                __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
  84                __entry->truesize   = skb->truesize;
  85                __entry->sk_rcvbuf  = READ_ONCE(sk->sk_rcvbuf);
  86        ),
  87
  88        TP_printk("rmem_alloc=%d truesize=%u sk_rcvbuf=%d",
  89                __entry->rmem_alloc, __entry->truesize, __entry->sk_rcvbuf)
  90);
  91
  92TRACE_EVENT(sock_exceed_buf_limit,
  93
  94        TP_PROTO(struct sock *sk, struct proto *prot, long allocated, int kind),
  95
  96        TP_ARGS(sk, prot, allocated, kind),
  97
  98        TP_STRUCT__entry(
  99                __array(char, name, 32)
 100                __field(long *, sysctl_mem)
 101                __field(long, allocated)
 102                __field(int, sysctl_rmem)
 103                __field(int, rmem_alloc)
 104                __field(int, sysctl_wmem)
 105                __field(int, wmem_alloc)
 106                __field(int, wmem_queued)
 107                __field(int, kind)
 108        ),
 109
 110        TP_fast_assign(
 111                strncpy(__entry->name, prot->name, 32);
 112                __entry->sysctl_mem = prot->sysctl_mem;
 113                __entry->allocated = allocated;
 114                __entry->sysctl_rmem = sk_get_rmem0(sk, prot);
 115                __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
 116                __entry->sysctl_wmem = sk_get_wmem0(sk, prot);
 117                __entry->wmem_alloc = refcount_read(&sk->sk_wmem_alloc);
 118                __entry->wmem_queued = READ_ONCE(sk->sk_wmem_queued);
 119                __entry->kind = kind;
 120        ),
 121
 122        TP_printk("proto:%s sysctl_mem=%ld,%ld,%ld allocated=%ld sysctl_rmem=%d rmem_alloc=%d sysctl_wmem=%d wmem_alloc=%d wmem_queued=%d kind=%s",
 123                __entry->name,
 124                __entry->sysctl_mem[0],
 125                __entry->sysctl_mem[1],
 126                __entry->sysctl_mem[2],
 127                __entry->allocated,
 128                __entry->sysctl_rmem,
 129                __entry->rmem_alloc,
 130                __entry->sysctl_wmem,
 131                __entry->wmem_alloc,
 132                __entry->wmem_queued,
 133                show_skmem_kind_names(__entry->kind)
 134        )
 135);
 136
 137TRACE_EVENT(inet_sock_set_state,
 138
 139        TP_PROTO(const struct sock *sk, const int oldstate, const int newstate),
 140
 141        TP_ARGS(sk, oldstate, newstate),
 142
 143        TP_STRUCT__entry(
 144                __field(const void *, skaddr)
 145                __field(int, oldstate)
 146                __field(int, newstate)
 147                __field(__u16, sport)
 148                __field(__u16, dport)
 149                __field(__u16, family)
 150                __field(__u8, protocol)
 151                __array(__u8, saddr, 4)
 152                __array(__u8, daddr, 4)
 153                __array(__u8, saddr_v6, 16)
 154                __array(__u8, daddr_v6, 16)
 155        ),
 156
 157        TP_fast_assign(
 158                struct inet_sock *inet = inet_sk(sk);
 159                struct in6_addr *pin6;
 160                __be32 *p32;
 161
 162                __entry->skaddr = sk;
 163                __entry->oldstate = oldstate;
 164                __entry->newstate = newstate;
 165
 166                __entry->family = sk->sk_family;
 167                __entry->protocol = sk->sk_protocol;
 168                __entry->sport = ntohs(inet->inet_sport);
 169                __entry->dport = ntohs(inet->inet_dport);
 170
 171                p32 = (__be32 *) __entry->saddr;
 172                *p32 = inet->inet_saddr;
 173
 174                p32 = (__be32 *) __entry->daddr;
 175                *p32 =  inet->inet_daddr;
 176
 177#if IS_ENABLED(CONFIG_IPV6)
 178                if (sk->sk_family == AF_INET6) {
 179                        pin6 = (struct in6_addr *)__entry->saddr_v6;
 180                        *pin6 = sk->sk_v6_rcv_saddr;
 181                        pin6 = (struct in6_addr *)__entry->daddr_v6;
 182                        *pin6 = sk->sk_v6_daddr;
 183                } else
 184#endif
 185                {
 186                        pin6 = (struct in6_addr *)__entry->saddr_v6;
 187                        ipv6_addr_set_v4mapped(inet->inet_saddr, pin6);
 188                        pin6 = (struct in6_addr *)__entry->daddr_v6;
 189                        ipv6_addr_set_v4mapped(inet->inet_daddr, pin6);
 190                }
 191        ),
 192
 193        TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c oldstate=%s newstate=%s",
 194                        show_family_name(__entry->family),
 195                        show_inet_protocol_name(__entry->protocol),
 196                        __entry->sport, __entry->dport,
 197                        __entry->saddr, __entry->daddr,
 198                        __entry->saddr_v6, __entry->daddr_v6,
 199                        show_tcp_state_name(__entry->oldstate),
 200                        show_tcp_state_name(__entry->newstate))
 201);
 202
 203#endif /* _TRACE_SOCK_H */
 204
 205/* This part must be outside protection */
 206#include <trace/define_trace.h>
 207